Electrical system: software
Buick technical service bulletin PI1351 for 2011-2013 Buick Regal.
- Bulletin number
- PI1351
- Component
- Electrical system: software
- Summary
- This preliminary bulletin provides a procedure to reprogram the TCM to correct the customers concern of harsh engaugments and 5-4 or 3-2 downshifts.
Owners of these vehicles have filed 129 complaints in the electrical category.
Vehicles covered
- Buick Regal 2011-2013 201120122013
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